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Description

A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.

PUBLISHED Reserved 2026-05-03 | Published 2026-05-04 | Updated 2026-05-04 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C

Problem types

Denial of Service

Product status

4.0
affected

4.1
affected

4.2
affected

4.3.0
affected

4.4.0
unaffected

Timeline

2026-05-03:Advisory disclosed
2026-05-03:VulDB entry created
2026-05-03:VulDB entry last update

Credits

rensiru (VulDB User) reporter

References

vuldb.com/vuln/360909 (VDB-360909 | osrg GoBGP SRv6 L3 Service prefix_sid.go SRv6L3ServiceAttribute.DecodeFromBytes denial of service) vdb-entry technical-description

vuldb.com/vuln/360909/cti (VDB-360909 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/807581 (Submit #807581 | GoBGP 4.3.0 Infinite Loop) third-party-advisory

github.com/...ommit/f9f7b55ec258e514be0264871fa645a2c3edad11 patch

github.com/osrg/gobgp/releases/tag/v4.4.0 patch

github.com/osrg/gobgp/ product

cve.org (CVE-2026-7734)

nvd.nist.gov (CVE-2026-7734)

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